CN209818956U - Thin-wall steel pipe connecting structure - Google Patents

Thin-wall steel pipe connecting structure Download PDF

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Publication number
CN209818956U
CN209818956U CN201822246024.1U CN201822246024U CN209818956U CN 209818956 U CN209818956 U CN 209818956U CN 201822246024 U CN201822246024 U CN 201822246024U CN 209818956 U CN209818956 U CN 209818956U
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CN
China
Prior art keywords
pipe
pipe fitting
thin
layer
steel pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201822246024.1U
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Chinese (zh)
Inventor
王欢雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Epson Environmental Protection Technology Co Ltd
Original Assignee
Sichuan Epson Environmental Protection Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan Epson Environmental Protection Technology Co Ltd filed Critical Sichuan Epson Environmental Protection Technology Co Ltd
Priority to CN201822246024.1U priority Critical patent/CN209818956U/en
Application granted granted Critical
Publication of CN209818956U publication Critical patent/CN209818956U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a thin wall steel pipe connection structure, including pipe fitting one and pipe fitting two, still include interior bushing pipe and outer tube, the external diameter of interior bushing pipe match with the internal diameter of pipe fitting one and pipe fitting two, insert the port of pipe fitting one and pipe fitting two respectively at the both ends of interior bushing pipe, and the middle part of interior bushing pipe be provided with protruding circle, the tip of pipe fitting one and pipe fitting two support and lean on protruding circle, the outer tube suit in the outside of pipe fitting one and pipe fitting two of interior bushing pipe position, and the outer tube be bilayer structure, the outer tube includes outer steel pipe layer and inner rubber layer, the outer tube presses moulding pressfitting section through the card with the coincidence region of interior bushing pipe. The utility model discloses simple structure, compactness, the equipment is convenient, and machining efficiency is high, effectively improves the compactness that the card pressed the connection, eliminates because the different spaces that produce of deformation improve and connect the leakproofness, effectively avoids appearing the situation of leaking, increase of service life.

Description

Thin-wall steel pipe connecting structure
Technical Field
The utility model relates to the technical field of pipeline, especially, relate to a thin wall steel pipe connection structure.
Background
The connection modes of the pipelines generally include threaded connection, flange connection, welding connection, socket connection, pipeline bonding connection and the like, different connection methods are generally selected according to the materials of the used pipes, and the connection modes for the thin-wall steel pipes mainly include threaded connection, welding connection and clamping connection. To card pressure connection structure, adopt the card to press the tong utensil to carry out the card to press processing usually, the construction is simple, high durability and convenient operation, practice thrift tubular product cost and installation man-hour and expense greatly, the card that adopts presses connection structure at present carries out flaring processing with the one end of a pipeline earlier usually, then insert in the flaring with the tip of another pipeline, then carry out the card to the processing of pressing of inserting coincidence department of two pipelines, but current card presses connection structure and is difficult to ensure the deformation synchronization of two pipelines when carrying out the card and press, be difficult to ensure the compactness of two pipelines on the card presses the junction on whole circumference, the card presses the junction to appear the space easily, the leakproofness is bad, the condition of leaking appears easily, connection quality is not good.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve and the technical task who provides improve prior art, provide a thin wall steel pipe connection structure, solve the pipeline card among the prior art and press connection structure to be difficult to ensure good compactness, have the space easily, the bad problem of leakproofness.
For solving the above technical problem, the technical scheme of the utility model is that:
the utility model provides a thin wall steel pipe connection structure, includes pipe fitting one and pipe fitting two, still includes interior bushing pipe and outer tube, the external diameter of interior bushing pipe match with the internal diameter of pipe fitting one and pipe fitting two, insert the port of pipe fitting one and pipe fitting two respectively at the both ends of interior bushing pipe, and the middle part of interior bushing pipe be provided with protruding circle, the tip of pipe fitting one and pipe fitting two support and lean on protruding circle, the outer tube suit in the outside of pipe fitting one and pipe fitting two of interior bushing pipe position, and the outer tube be bilayer structure, the outer tube includes outer steel pipe layer and inner rubber layer, the outer tube is moulded into the pressfitting section through the card pressure with the coincidence region of interior bushing pipe. Thin wall steel pipe connection structure adopt interior bushing pipe to support in the port of pipe fitting one that needs to be connected and pipe fitting two, then at pipe fitting one and pipe fitting two outside suit outer tube, the mode of pressing through the card carries out effective connection, need not to carry out flaring processing to pipe fitting one or pipe fitting two again, machining efficiency is higher, and utilize interior bushing pipe to prevent that pipe fitting one and pipe fitting two from taking place the deformation of shrinking in, ensure pipe fitting one, pipe fitting two can keep deformation synchronous with the outer tube, thereby improve and connect the compactness, reduce the asynchronous space that produces of deformation, and the inlayer of overcoat is the inner rubber layer, the inner rubber layer has good elastic deformation ability, can further fill the space of the different productions of deformation, effectual improvement connection leakproofness, avoid appearing the situation of leaking, stable in structure, long service life.
Furthermore, the spiral steel wire mesh layer is compounded in the inner rubber layer, so that the strength of the inner rubber layer is improved, and the structural stability of the joint of the pipe fitting I and the pipe fitting II is improved.
Further, outer steel pipe layer exceed one section length of inner rubber layer at the both ends of outer tube, when carrying out the card and pressing, the tip laminating card of outer steel pipe layer is pressed on pipe fitting one and pipe fitting two surfaces, with inner rubber layer parcel in inside, can effectually slow down the ageing on inner rubber layer, increase of service life.
Further, the inner wall of the part of the outer steel pipe layer, which exceeds the inner rubber layer, is connected with a metal cushion layer, when the metal cushion layer is clamped and pressed on the surfaces of the first pipe fitting and the second pipe fitting, the inner rubber layer is wrapped inside, the aging of the inner rubber layer can be effectively slowed down, and the service life is prolonged.
Furthermore, the convex ring is a sealing rubber ring, so that the installation is convenient, and the connection sealing performance is good.
Furthermore, the outer wall in the middle of the lining pipe is provided with the annular groove for placing the sealing rubber ring, so that the sealing rubber ring can be effectively positioned and fixed, the assembly is convenient, the efficiency is high, and the processing precision is high.
Furthermore, the binding surfaces of the outer sleeve, the inner lining pipe, the pipe fitting I and the pipe fitting II are coated with anaerobic adhesive layers, the anaerobic adhesive layers play a role in adhesion and sealing, and the anaerobic adhesive layers are rapidly cured in the pressed pipe connecting piece due to oxygen deficiency, so that the sealing performance is effectively improved.
Further, the pressfitting section include along a plurality of annular depressed grooves of axial distribution to the anticreep section that is prismatic structure still processes out through the card pressure at the axial both ends of pressfitting section, improves connection sealing nature, the anticreep section has greatly increased the structural strength that tubular product is connected, improves the tensile performance of pulling out that tubular product is connected, and can effectively prevent circumferential direction, remain stable connection sealing nature.
Compared with the prior art, the utility model discloses the advantage lies in:
thin wall steel pipe connection structure, simple structure, compactness, the equipment is convenient, machining efficiency is high, effectively improves the compactness that the card pressed the connection, eliminates because the different spaces that produce of deformation improves the connection leakproofness, effectively avoids appearing the situation of leaking, increase of service life.
Drawings
FIG. 1 is an assembly structure diagram of a thin-walled steel pipe connection structure;
fig. 2 is a schematic structural diagram of the thin-wall steel pipe connection structure after clamping and pressing are completed.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model discloses thin wall steel pipe connection structure effectively improves the compactness that the card pressed the connection, eliminates because the different spaces that produce of deformation, improves and connects the leakproofness, effectively avoids appearing the situation of leaking, increase of service life.
As shown in fig. 1 and 2, a thin-walled steel pipe connection structure includes a first pipe member 1, a second pipe member 2, a lining pipe 3 and an outer sleeve 4, wherein an outer diameter of the lining pipe 3 matches with inner diameters of the first pipe member 1 and the second pipe member 2, so as to facilitate assembly and ensure that the lining pipe 3 can effectively support the first pipe member 1 and the second pipe member 2, in this embodiment, an outer diameter of the lining pipe 3 is 0.2 to 0.5mm smaller than the inner diameters of the first pipe member 1 and the second pipe member 2, preferably 0.5mm, two ends of the lining pipe 3 are respectively inserted into ports of the first pipe member 1 and the second pipe member 2, a convex ring 31 is disposed in a middle portion of the lining pipe 3, ends of the first pipe member 1 and the second pipe member 2 abut against the convex ring 31, the outer sleeve 4 is sleeved outside the first pipe member 1 and the second pipe member 2 where the pipe 3 is located, that the outer sleeve 4 and the lining pipe 3 are located at the same axial position of the first, and the outer sleeve 4 is a double-layer structure, the outer sleeve 4 comprises an outer steel pipe layer 41 and an inner rubber layer 42, a spiral steel wire mesh layer is compounded in the inner rubber layer 42, the overlapped area of the outer sleeve 4 and the inner lining pipe 3 forms a pressing section through clamping and compression molding, in the embodiment, the pressing section comprises a plurality of annular concave grooves 5 which are distributed along the axial direction, and anti-falling sections 6 which are in prism structures are processed at the two axial ends of the pressing section through clamping and compression molding.
When carrying out the pressfitting and connecting, interior bushing pipe 3 provides effectual support to pipe fitting one 1 and pipe fitting two 2, prevent that pipe fitting one 1 and pipe fitting two 2 from appearing too big retraction type deformation, ensure that pipe fitting one 1 and pipe fitting two 2 can keep unanimous deformation with outer tube 4, reduce the produced space of the inconsistent deformation, and interior rubber layer 42 has good elastic deformation ability, can further fill the space, improve the connection compactness on the whole circumferencial direction, the situation of leaking appears in effectual wall.
In this embodiment, the convex ring 31 is a sealing rubber ring, an annular groove for placing the sealing rubber ring is formed in the outer wall of the middle part of the inner lining pipe 3, when the connection is performed, the sealing rubber ring is firstly sleeved on the inner lining pipe 3, then one end of the inner lining pipe 3 is inserted into the pipe fitting I1, the outer sleeve 4 is sleeved on the pipe fitting I1, then the pipe fitting II 2 is inserted from the other ends of the inner lining pipe 3 and the outer sleeve 4, and finally the clamping operation is performed; outer steel pipe layer 41 surpasss a section length of inner rubber layer 42 at the both ends of outer sleeve pipe 4 to outer steel pipe layer 41 surpasss the inner wall of the part of inner rubber layer 42 and is connected with metal cushion 43, and the metal cushion laminating card is pressed on pipe fitting one and pipe fitting two surfaces when carrying out the card and pressing, and the preferred copper product of metal cushion 43 can ensure good leakproofness.
The binding surfaces of the outer sleeve 4 and the inner lining pipe 3, the pipe fitting I1 and the pipe fitting II 2 are coated with anaerobic adhesive layers, the anaerobic adhesive layers play a role in adhesion and sealing, the structural stability is improved, and leakage is further prevented.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims (8)

1. A thin-wall steel pipe connecting structure comprises a first pipe fitting (1) and a second pipe fitting (2), it is characterized by also comprising a lining pipe (3) and an outer sleeve (4), wherein the outer diameter of the lining pipe (3) is matched with the inner diameters of the first pipe fitting (1) and the second pipe fitting (2), the two ends of the lining pipe (3) are respectively inserted into the ports of the first pipe fitting (1) and the second pipe fitting (2), and the middle part of the lining pipe (3) is provided with a convex ring (31), the end parts of the first pipe fitting (1) and the second pipe fitting (2) are abutted against the convex ring (31), the outer sleeve (4) is sleeved outside the pipe fitting I (1) and the pipe fitting II (2) at the position of the inner lining pipe (3), the outer sleeve (4) is of a double-layer structure, the outer sleeve (4) comprises an outer steel pipe layer (41) and an inner rubber layer (42), and the overlapping area of the outer sleeve (4) and the inner lining pipe (3) is formed into a pressing section through clamping, pressing and molding.
2. The thin-walled steel pipe connecting structure according to claim 1, wherein the inner rubber layer (42) is internally compounded with a spiral steel wire mesh layer.
3. The thin-walled steel pipe connection structure as claimed in claim 1, wherein the outer steel pipe layer (41) extends beyond the inner rubber layer (42) by a length at both ends of the outer sleeve (4).
4. The thin-walled steel pipe connection structure according to claim 3, wherein a metal cushion layer (43) is connected to the inner wall of the portion of the outer steel pipe layer (41) beyond the inner rubber layer (42).
5. The thin-walled steel pipe connection structure according to any one of claims 1 to 4, wherein the bead (31) is a rubber gasket.
6. The thin-walled steel tube connecting structure according to claim 5, wherein the outer wall of the middle part of the lining tube (3) is provided with a ring groove for placing a sealing rubber ring.
7. The thin-walled steel pipe connecting structure according to claim 1, wherein the abutting surfaces of the outer sleeve (4) and the inner lining pipe (3) and the first pipe (1) and the second pipe (2) are coated with anaerobic adhesive layers.
8. The thin-walled steel tube connecting structure according to claim 1, wherein the press-fit section comprises a plurality of annular concave grooves (5) distributed along the axial direction, and anti-falling sections (6) in a prism structure are machined at the two axial ends of the press-fit section through clamping and pressing.
CN201822246024.1U 2018-12-28 2018-12-28 Thin-wall steel pipe connecting structure Expired - Fee Related CN209818956U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822246024.1U CN209818956U (en) 2018-12-28 2018-12-28 Thin-wall steel pipe connecting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822246024.1U CN209818956U (en) 2018-12-28 2018-12-28 Thin-wall steel pipe connecting structure

Publications (1)

Publication Number Publication Date
CN209818956U true CN209818956U (en) 2019-12-20

Family

ID=68870436

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822246024.1U Expired - Fee Related CN209818956U (en) 2018-12-28 2018-12-28 Thin-wall steel pipe connecting structure

Country Status (1)

Country Link
CN (1) CN209818956U (en)

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20191220

Termination date: 20191228